Ostapchuk v. Vili is one of the best rivalries around. This will be Vili's first big test since firing her coach after losing the World Indoor Championships to Ostapchuk. Everyone else here is competing for third.

6:30 AM Men's Discus ThrowLeading entries#1 Gerd Kanter (EST), #2 Robert Harting (GER), #3 Jason Young (USA), #4 Piotr Malachowski (POL), #5 Zoltán Kövágó (HUN), #7 Jarred Rome (USA), #13 Ehsan Hadadi (IRI), #25 Ian Waltz (USA)AnalysisOne effect of the Diamond League setup is that the traditionally ignored events, like the discus, will have loaded fields every time out. Kanter has put up some big distances in southern California's big winds, but Harting won at the recent all-throws meet in Germany. Those two, along with Kövágó, are your favorites for the win.

7:43 AM Men's High JumpLeading entries#3 Dusty Jonas (USA), #4 Jesse Williams (USA),#8 Andra Manson (USA), #12 Andrey Tereshin (RUS)AnalysisIt looks like the USA should do well here. Most of these guys haven't competed much since the indoor season, with the exception of Jonas and Manson.

8:25 AM Men's 400 metersLeading entries#4 Jeremy Wariner (USA), #7 Ben Offereins (AUS), #15 Leslie Djhoné (FRA), #22 David Neville (USA)AnalysisWe'll find out whether Wariner was just rusty in his opener or if he's really having problems. He lost to Neville last time out, and both Offereins and Djhoné are capable of sub-45. This is no cakewalk for Wariner.

This could be the most interesting competition of the whole meet. Lapierre put up a big mark in April, Phillips was on fire last year, and Saladino is no slouch. Chinese entry Su is a dark horse and the home team's best chance for a win.